How to convert CGRect to CGPoint iOS Swift

Question

Here i want to convert UIImageView's maxY CGRect value to CGPoint, but when i tried to convert CGRect value to CGPoint i got an error.

Code

let cgPoint = imgPin.convert(imgPin.frame.minY, to: self.view)

Error

Expression type '@lvalue CGRect' is ambiguous without more context

Convert your `Double` value to `CGFloat`. – Vinu Jacob Aug 26 '19 at 05:31 — Vinu Jacob, Aug 26 '19 at 05:31

score 4 · Accepted Answer · answered Aug 26 '19 at 05:32

You have to pass a CGPoint instead of CGFloat as below,

// set x, y as per your requirements.
let point = CGPoint(x: imgPin.frame.minX, y: imgPin.frame.minY)
let cgPoint = imgPin.convert(point, to: self.view)

OR

You can pass the CGRect as it is and get the point as origin,

let cgPoint = v.convert(imgPin.frame, to: self.view).origin

score 0 · Answer 2 · answered Aug 26 '19 at 05:49

You can use this extension:

extension CGRect {
    var topLeadingPoint: CGPoint { return CGPoint(x: minX, y: minY) }
    var topTrailingPoint: CGPoint { return CGPoint(x: maxX, y: minY) }
    var bottomLeadingPoint: CGPoint { return CGPoint(x: minX, y: maxY) }
    var bottomTrailingPoint: CGPoint { return CGPoint(x: maxX, y: maxY) }
}

Then you can use it like:

let cgPoint = imgPin.frame.bottomTrailingPoint

score 0 · Answer 3 · answered Aug 26 '19 at 05:56

0

You can do like this to convert point from imgPin to self.view

let cgPoint = imgPin.convert(imgPin.frame.origin, to: self.view)

answered Aug 26 '19 at 05:56

Thanh Vu

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How to convert CGRect to CGPoint iOS Swift

3 Answers3